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Contract OI history

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Jan 15, 2027 EXPIRATION

TWST $90.00 Put

TWST270115P00090000

Latest saved OI156Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TWST $90.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 171850 2026-10-09: 170 OI2026-10-13: 170 OI2026-10-14: 170 OI2026-10-16: 171 OI2026-10-21: 156 OI2026-10-23: 156 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

TWST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1560
Oct 21, 2026156-15
Oct 16, 2026171+1
Oct 14, 20261700
Oct 13, 20261700
Oct 09, 2026170No prior observation